31486240

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 78382080

約数和(自身を除く): 46895840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 53, 79, 80, 94, 106, 158, 160, 188, 212, 235, 265, 316, 376, 395, 424, 470, 530, 632, 752, 790, 848, 940, 1060, 1264, 1504, 1580, 1696, 1880, 2120, 2491, 2528, 3160, 3713, 3760, 4187, 4240, 4982, 6320, 7426, 7520, 8374, 8480, 9964, 12455, 12640, 14852, 16748, 18565, 19928, 20935, 24910, 29704, 33496, 37130, 39856, 41870, 49820, 59408, 66992, 74260, 79712, 83740, 99640, 118816, 133984, 148520, 167480, 196789, 199280, 297040, 334960, 393578, 398560, 594080, 669920, 787156, 983945, 1574312, 1967890, 3148624, 3935780, 6297248, 7871560, 15743120, 31486240]

約数ペア:

[(1, 31486240), (2, 15743120), (4, 7871560), (5, 6297248), (8, 3935780), (10, 3148624), (16, 1967890), (20, 1574312), (32, 983945), (40, 787156), (47, 669920), (53, 594080), (79, 398560), (80, 393578), (94, 334960), (106, 297040), (158, 199280), (160, 196789), (188, 167480), (212, 148520), (235, 133984), (265, 118816), (316, 99640), (376, 83740), (395, 79712), (424, 74260), (470, 66992), (530, 59408), (632, 49820), (752, 41870), (790, 39856), (848, 37130), (940, 33496), (1060, 29704), (1264, 24910), (1504, 20935), (1580, 19928), (1696, 18565), (1880, 16748), (2120, 14852), (2491, 12640), (2528, 12455), (3160, 9964), (3713, 8480), (3760, 8374), (4187, 7520), (4240, 7426), (4982, 6320)]